Have a good look at the vacuum lines around the throttle bodies. Any splits or lose hoses mess the fuelling big time.
I would also check the Throttle position sensor adjustment in case too.
I reckon your chip is the Aprilia Ti race can version. They weren't always labled as such.
Will send my maps shortly
I find this site... http://home.worldonline.dk/nimskov/millegb.html
So do you think that is possible that the inside map work better with open can?
Maybe the previous owner have it and sell to me without...